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4. Arrays

Introduction

# declaring an array
declare -a ary
# declaring + defining
single_level = ( this that the other )
# @@INCOMPLETE@@

Specifying a List In Your Program

# pushing at the end of an array
ary[${#ary[@]}]=whatever
# @@INCOMPLETE@@

Printing a List with Commas

Changing Array Size
Doing Something with Every Element in a List
for element in "${list[@]}"; do
    echo $element
done
# @@INCOMPLETE@@


  

Iterating Over an Array by Reference
Extracting Unique Elements from a List
Finding Elements in One Array but Not Another
Computing Union, Intersection, or Difference of Unique Lists
Appending One Array to Another
Reversing an Array
Processing Multiple Elements of an Array
Finding the First List Element That Passes a Test
Finding All Elements in an Array Matching Certain Criteria
Sorting an Array Numerically
Sorting a List by Computable Field
Implementing a Circular List
Randomizing an Array
Program: words
Program: permute
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